MATLAB Answers

How to speedup left divide on GPU?

1 view (last 30 days)
Mantas Vaitonis
Mantas Vaitonis on 18 Jul 2018
Edited: Mantas Vaitonis on 19 Jul 2018
I have two same size 4D gpuArrays f(NxMxLxK) and f1(NxMxLxK) and I need to left divide each column, for that this code is implemented, which become a bottleneck in my algorithm and uses about 95% of runtime:
beta2= arrayfun(@(n) f(:,n)\f1(:,n), 1:numel(f)/size(f,1));
Result beta2 is vector. Is there a way to speed up this code? I assume the latency is due to fact that inside arrayfun is for loop which moves data from cpu to gpu and so on.


Sign in to comment.

Answers (0)

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by